Re: Right earbud not working.

Have you tried using an alternate charging cable to the charging case to see whether this may be causing you issues?

I would also check for any available firmware updates for your headphones. This can be done via a computer using a USB and visiting our firmware update website btu.bose.com, which will provide you with full instructions.

Re: Right earbud not working.

I'm sorry to hear that the troubleshooting steps have not been successful for you.

I would recommend that you get in contact with our team as we have tried all the troubleshooting steps we would normally recommend. You can do this by clicking the LINK HERE selecting your country and scrolling down to 'Contact Us'. One of our agents will be more than happy to help!